Vehicle-brake.



R. E. RELYEA.

VEHICLE BRAKE.

APPLICATION HLED 050419, 19:4.

Patented June 22, 1915.

2 SHEETSSHEET I.

)NvEHTor: M a.

qwowmev R. E. RELYEA.

VEHICLE BRAKE.

APPUCATION FILED 05019. 1914.

1,143,996. Patented June 22, 1915.

2 SHEETSSHEET 2.

WITNESSES hwEnToR FTTORHEY UNEEED s gns i RALPH. Er RELYE-, DETROIT, ZVIICHIGAN.

YEHICL' l lo it known that. I, RALPH lil. RELYEA, a eirizr-n oi the United States; residing at j roit, (minty of ii-'nyne, State. of Miehi 1 "org-went in Vehiele-ldrzihes and do (f-the following to he a full, clear, and ill ennhle others skilled in the art to which it pertains to make and use the some, referip rringg (ii .enee heina: had to the 110001 n r w 1113's,. \vlneh form :1 part of this specifica- -tion.

I e '1 his invention and has for its ob ect; what helsered to relates to vehicle hrnhes he 2: novel manner oil" :zpg'ilying the brakes end--releasing: them.

' his.

, l igure l is a Plan View with the hruhes Pntonnled on an zintnnoliile ehns' Fig. 1?.

mtien on the line A An? Fig i.

' 1 section on the line B B of Ii, 1. I 2 is it view ofithe rear i sic of Zillfiilli'C- dmohfle with the brake zipphn. in place.

ilhe. View tzihen from the front oi the axle. ,"Fi '5' u section onthe line C (l of lig.

lie. 6 is 11 section on the line I) I of Fig 7 is a fragmentary view of ,the uheel unu rea axle showing the brake drum lll'v iLli only to disclose the hrsking ammrntus. Fig. 8 is a view of the hrznie ,dru1n from theWYheel side with the lower partsectioned, the section being when on the line if, 19 of Fig. 7.

9 is a ting mentary view of the stationary brake eolflair which carries the brake shoes and [its vwithin the brake drum. It shows the toggie- Joint.

' Referring to Figs. 7 and 8, a indieutes I the liralie drum, 7: the brake 00111112,. to which thereto.

are pivoted the two hrnhe shoes 0, 0. d is n wedge by which they may be expanded to engage the inner surface of the-brake 7, for they are at the left of their n 4, 4 I\L center, and the wail of the. brake collar 5 ,hnve invented :1 co: sin new and useful Specification of FLeLters Latent.

tiled December 13,1;

BRAT'E.

Patented June 22, 1915.

Seria 2%. 878,148.

rnn pirot freely. This operation I use to spin the brakes, and I pull the toggle lo the right and free the Wedge thus: so rods j 3' (Fig. 4) are held in slidahlo 1'ltil()ll lay the three depending brackets 'iheir o'reriapping flattened ternii- :ire held siiduhly by the bracket m, nd when the pin n 5) is retracted, the v'll togetl'ier under the influence of r a. Each of the rods is provided a: he l; x which hooks over the toggle and eziinsequently when the pin 01 ,iruelied and the rods j, pull. together, the tog les are thrown heroin} their dead center no I sway frozn the brake collar. As already explained, th the wedge {Z and the n ll springs {fills-J the wedge and spread the shoes thereby providii ig the nee ssar '"rietion for braking.

The pins n are Witlnlruwn from the rods j, i in the ii'ollowing manner: Referring to l i 1 2.! i 9-, it will be seen that the pins are in re It? the tern'nnnls oi the reach rods G, 5 one of which reaches to the lGHl' axle and the other of which renches to the front axle. one of these reach rods is linked to a lever 1 helow the fulcrum point, and the other rod is linked to the lever r above the fulcrum point. This lever r is operated by the clutch pedal '3. Only a part of tliefull 'iermissihle swing of the clutch lever is necessary to throw the clutch out. The continuation of such swing causes a do endin end of the clutch lever to on a e I": {3

l the end of the lever a" therehv throwing it hurl; to the 'position shown in the dotted lines of .lkg. Upon the return stroke 01'. ll

elntrh perish the null s firing t serves to return we reach rods to their initial posr if rom they cannot return until tuned terminals of the hose sets will not reg- 'OllS i are pulled tonese rods so us look .e rake shoes.

the edge from This is etieeted l the push rods 14, 21, {Fig 4:). Whenthe as the toggleqlevers engage with the hook terminals 7) of the rods. The cam o is rotated by the" rock shaft w (Fig.- 1), which in turn is rocked by the plunger 00 and the rock arm z as shown in Fig. 3. The spring z returns the plunger, the rock arm, rock shaft and cam to their original positions after the brakes have been released.

It will be noticed that my brakes and the brake operating apparatus are applied to all four wheels of the car and that they are simultaneously applied-and released. This affords larger braking surface, and inasmuch as all four wheels are braked simultaneously, a quicker stopping of the car is efl'ecteds. By reason of the clearance between the hooks on the ends of the rods j, j and u, u and the toggle levers, the front wheels may turn without interfering with the brake operating apparatus.

' What I claim is:

1. In apparatus of the class described, thecombination of a brake drum, a brake collar, a shoe movably held by said brake collar and arranged to engage with the brake drum when desired, a springcontrolled device normally tending to force the shoe into engagement with the brake drum, a pair of toggle levers connected with said spring-controlled device so that when they are .on one side of their dead center'and bear against the-brake collar, they resist the efforts of the spring to cause the said springcontrolled device to apply the shoe 'to the brake drum, and when on the other side of their dead cpntei 'they allow the spring to cause the springcontrolled device to apply .the brake shoe 2. In apparatus of the class described, the

.combination of a brake drum, a brake'collar, a pair of shoes pivoted there'to,. a wedge for spreading the hoes, a spring norm'ally'tending to operate the wedge to spread the shoes,

means for locking the wedge to prevent the' action ot/ the spring, and means for releasing the lock'and for putting in on.

3. In apparatus of the class described, the combination of a brake drum, a brake collar,

a pair of shoes pivoted to the brake collar, a

wedge for spreading the shoes, a spring for" operating the wedge'and a, pair of toggle levers which on one side-of their dead center prevent the spring operating the wedge, while on theother side of their dead center allow thespring to operate the wedge, and means for drawing the toggle levers from one side to the other of their dead center to release or lock the wedge.

4. In apparatus of the class described, the combination of a brake drum, a brake .collar, brake shoes pivoted thereto, a Wedge and on the other side of their dead center free the wedge to allow the spring to operate, draft connections for pulling the toggle levers beyond their dead center and away from the brake collar, and push connections forforcing the toggle levers beyond their dead center and back against the brake drum.

5. In apparatus of the class described, the combination of a brake drum, a brake collar, 21 pair of shoes pivoted thereto, a wedge for spreading the shoes, a spring normally tending to cause the wedge to spread the shoes, a pair of toggle levers which on the side of the dead center toward and against the brake collar, lock .the wedge against the action of the sprin and on the side of their dead center away from the brake collar, allow the operation of the spring, draft connections for pulling the toggle levers away from the brake collar, push connections for forcing the toggle levers against the brake collar, a clutch pedal and connections for operating the draft connections, and a separate operating device for operating the push connections to release the brakes.

6. In apparatus of the class described. the combination of a brake drum. a brake collar, shoes pivoted thereto. a wedge for spreading the shoes, a spring for actuating the wedgeand a pair of toggle levers which on one side of their dead center lock the wedge against actuation by the spring and on the other side of their dead center allow the operation of the spring, a pair of spring pulled rods. a pin for preventing their being pulled together, the said rods engaging with the toggle levers to ull them past their dead center and to free the wedge, means for disengaging the pin from the rods to allow them to pull the toggle levers to free the wedge. a pair of push rods adapted to engage with the toggle levers to force them back bevond their dead center and to lock .the wedge, and a cam for operating the push rods.

In testimony whereof. I sign this specification i the presence of two witnesses. 

